ML20134Q251

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Ro:On 840604,during Startup,Reactor Shut Down When Channel 2 Not Indicating in Expected Power Range.Caused by Faulty Connector.Faulty Signal Cable Connector Replaced & Normal Operations Resumed
ML20134Q251
Person / Time
Site: 05000128
Issue date: 06/05/1984
From: Feltz D
TEXAS A&M UNIV., COLLEGE STATION, TX
To: Johnson E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
NUDOCS 8509090254
Download: ML20134Q251 (1)


Text

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dEFEnENCc HEP 0HfAblE OCCUhWENCE, LOSS OF SIGNAL TO SAFETY MEASURING O

O sl CHANaEL.

ON JUNE 4 1934 DJHING SIAHTUP OF THE NSCR AT 1109 HOURS IT WAS

-O OBSERVeu friAf SAFETY CHANNEL NdMBEH 2 dAS NOT INDICATING. THIS WAS O

udSedVED IN fHE PonEH HANUE A!iERE THIS CHANNEL SHOULD INITI ALLY dtSt>0ND (.30K,i - 100Kn). INDICAflu:lS nERE I 0HMAL oil ALL OfHER O

acASuaINo CHANNELS. Tiit HEACTod iv AS SHUT DOWN AND THE PRJBLEM TRACED O

fu A FAULfY CONNECrod IN THE SIGNAL CABLE To THE SAFETY CHANNEL NUMBcH 2 UEldCf0R. THE CONNECTOR WAS REPLACED AND INSTRUMENT CHECKS O

. sche PcHF0dMED. OUdIWG STARTUP Ot; THE REACIGH AT APPH0XIMATELY 1300 0

HOURS, SATE 1Y CHANNEL NUMBER 2 ReSPONDEt) PHOPERLY. THE REACTOR WAS HETUHNcu fo NOHMAL Or>ERATIONS.

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